Results 61 to 70 of about 1,036,703 (213)

Application of coherent structure tracking to solar Doppler maps to determine horizontal velocity fields at the Sun’s surface

open access: yesAstronomy & Astrophysics
Context. Coherent structure tracking (CST) is a technique for determining solar surface horizontal flows at high spatial and temporal resolution by tracking the proper motion of granules.
Sampoorna M., Roudier T., Paletou F.
doaj   +1 more source

Numerical study of granulation in anelastic thermal convection in spherical shells

open access: yes
The present work investigates granulation or convective flow patterns in density-stratified (or anelastic) convection in spherical shells. The density-stratified thermal convection is typically present in astrophysical systems (such as solar convection);
Khan, Hamid Hassan   +2 more
core   +1 more source

Solar Alfvénic Pulses and Mesoscale Solar Wind

open access: yesThe Astrophysical Journal Letters
Large-scale solar ejections are well understood, but the extent to which small-scale solar features directly influence the solar wind remains an open question, primarily due to the challenges of tracing these small-scale ejections and their impact. Here,
Jeongwoo Lee   +5 more
doaj   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Science, Volume 13, Issue 44, 7 August 2026.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke   +12 more
wiley   +1 more source

Sensitivity of Spectral Lines to Granulation: From the Sun to K-type Stars

open access: yesThe Astrophysical Journal
Stellar granulation is a source of radial-velocity (RV) jitter of 1 m s ^−1 on Sun-like stars, limiting the detection of Earth analogs. One way to move beyond this limit is to use line-weighting schemes to mitigate granulation-driven RV variability in a ...
V. Vasilyev   +9 more
doaj   +1 more source

DIAMONDS: a new Bayesian nested sampling tool*

open access: yesEPJ Web of Conferences, 2015
In the context of high-quality asteroseismic data provided by the NASA Kepler Mission, we developed a new code, termed DIAMONDS (high-DImensional And multi-MOdal NesteD Sampling), for fast Bayesian parameter estimation and model comparison by means of ...
Corsaro Enrico, Ridder Joris De
doaj   +1 more source

Challenges and enablers in fluidization technology

open access: yesAIChE Journal, Volume 72, Issue 8, August 2026.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Small-scale Bright Point Characteristics at High-resolution with the Daniel K. Inouye Solar Telescope

open access: yesThe Astrophysical Journal
Bright points (BPs) are small-scale, dynamic features that are ubiquitous across the solar disc and are often associated with the underlying magnetic field.
Peter H. Keys   +11 more
doaj   +1 more source

Granulation /

open access: yes, 2007
Granulation provides a complete and comprehensive introduction on the state-of-the-art of granulation and how it can be applied both in an academic context and from an industrial perspective. Coupling science and engineering practices it covers differing
Salmon, A. D.(Agba D.)   +2 more
core  

Optimising the global detection of solar-like oscillations

open access: yesAstronomy & Astrophysics
Context. A well-established method exists for predicting the detectability of solar-like oscillations that has seen extensive application supporting target selection strategies for space-based photometric missions.
Lund Mikkel N., Chaplin William J.
doaj   +1 more source

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